import unittest

class SomeTest1(unittest.TestCase):
  """ Testing something. """

  def test_smth_valid(self):
    """ Valid test """
    self.assertEqual(42, 42)

  def test_smth_error(self):
    """ Test with error """
    raise Exception('Hello, world')

  def test_smth_failure(self):
    """ Test with failure """
    self.assertEqual("Answer to the Ultimate Question of Life, the Universe, and Everything", 43)